IP Library Granted Patent US 10,876,074
Granted Patent B2
US 10,876,074 · App. 15/765,538 · Granted Dec 29, 2020

Glucan fiber compositions for use in laundry care and fabric care

Inventors: Robert DiCosimo (Chadds Ford, PA); Qiong Cheng (Wilmington, DE); Rakesh Nambiar (West Chester, PA); Jayme L. Paullin (Exton, PA); Mark S Payne (Wilmington, DE); Jahnavi Chandra Prasad (Wilmington, DE); Zheng You (Hoffman Estates, IL)
Assignee: DuPont Industrial Biosciences USA, LLC
C11D3/222C11D3/001
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Quick Facts
Patent No.
US 10,876,074
App. No.
15/765,538
Granted
Dec 29, 2020
Kind
B2
Abstract

An enzymatically produced α-glucan oligomer/polymer compositions is provided. The enzymatically produced α-glucan oligomer/polymers can be derivatized into α-glucan ether compounds. The α-glucan oligomers/polymers and the corresponding α-glucan ethers are cellulose and/or protease resistant, making them suitable for use in fabric care and laundry care applications. Methods for the production and use of the present compositions are also provided.

Claims (30)

1. A fabric care composition or laundry care composition comprising:

(a) an α-glucan oligomer/polymer composition comprising:

(i) at least 75% α-(1,3) glycosidic linkages;

(ii) less than 25% α-(1,6) glycosidic linkages;

(iii) less than 10% α-(1,3,6) glycosidic linkages;

(iv) a weight average molecular weight of less than 5000 Daltons;

(v) a viscosity of less than 0.25 Pascal second at 12 wt % in water at 20° C.;

(vi) a solubility of at least 20% (w/w) in water at 25° C.; and

(vii) a polydispersity index of less than 5; and

(b) at least one additional fabric care or laundry care ingredient, wherein the additional ingredient is at least one cellulase.

2. A fabric care composition or laundry care composition comprising:

(a) an α-glucan oligomer/polymer composition comprising:

(i) at least 75% α-(1,3) glycosidic linkages;

(ii) less than 25% α-(1,6) glycosidic linkages;

(iii) less than 10% α-(1,3,6) glycosidic linkages;

(iv) a weight average molecular weight of less than 5000 Daltons;

(v) a viscosity of less than 0.25 Pascal second at 12 wt % in water at 20° C.;

(vi) a solubility of at least 20% (w/w) in water at 25° C.; and

(vii) a polydispersity index of less than 5; and

(b) at least one additional fabric care or laundry care ingredient, wherein the additional ingredient is at least one protease.

3. The fabric care composition or laundry care composition of claim 1 , wherein the α-glucan oligomer/polymer composition comprises less than 5% α-(1,4) glycosidic linkages.

4. The fabric care composition or laundry care composition of claim 1 , wherein the fabric care composition or laundry care composition comprises 0.01 to 90% wt % of the α-glucan oligomer/polymer composition.

5. The fabric care composition or laundry care composition of claim 1 , wherein the at least one additional fabric care or laundry care ingredient further comprises at least one of surfactants selected from anionic surfactants, nonionic surfactants, cationic surfactants, or zwitterionic surfactants, enzymes selected from proteases, polyesterases, amylases, cutinases, lipases, pectate lyases, perhydrolases, xylanases, peroxidases, and/or laccases, detergent builders, complexing agents, polymers, soil release polymers, surfactancy-boosting polymers, bleaching systems, bleach activators, bleaching catalysts, fabric conditioners, clays, foam boosters, suds suppressors, anti-corrosion agents, soil-suspending agents, anti-soil redeposition agents, dyes, bactericides, tarnish inhibiters, optical brighteners, perfumes, saturated or unsaturated fatty acids, dye transfer inhibiting agents, chelating agents, hueing dyes, calcium and magnesium cations, visual signaling ingredients, anti-foam, structurants, thickeners, anti-caking agents, starch, sand, gelling agents, or any combination thereof.

6. The fabric care composition or laundry care composition of claim 1 , wherein the fabric care composition or laundry care composition is in the form of a liquid, a gel, a powder, a hydrocolloid, an aqueous solution, granules, tablets, capsules, single compartment sachets, multi-compartment sachets, or any combination thereof.

7. The fabric care composition or laundry care composition of claim 1 , wherein the α-glucan oligomer/polymer composition is cellulase-resistant, protease-resistant, amylase-resistant, or a combination thereof.

8. The fabric care composition or laundry care composition of claim 2 , wherein the α-glucan oligomer/polymer composition comprises less than 5% α-(1,4) glycosidic linkages.

9. The fabric care composition or laundry care composition of claim 2 , wherein the fabric care composition or laundry care composition comprises 0.01 to 90% wt % of the α-glucan oligomer/polymer composition.

10. The fabric care composition or laundry care composition of claim 2 , wherein the at least one additional fabric care or laundry care ingredient further comprises at least one of surfactants selected from anionic surfactants, nonionic surfactants, cationic surfactants, or zwitterionic surfactants, enzymes selected from cellulases, polyesterases, amylases, cutinases, lipases, pectate lyases, perhydrolases, xylanases, peroxidases, and/or laccases, detergent builders, complexing agents, polymers, soil release polymers, surfactancy-boosting polymers, bleaching systems, bleach activators, bleaching catalysts, fabric conditioners, clays, foam boosters, suds suppressors, anti-corrosion agents, soil-suspending agents, anti-soil redeposition agents, dyes, bactericides, tarnish inhibiters, optical brighteners, perfumes, saturated or unsaturated fatty acids, dye transfer inhibiting agents, chelating agents, hueing dyes, calcium and magnesium cations, visual signaling ingredients, anti-foam, structurants, thickeners, anti-caking agents, starch, sand, gelling agents, or any combination thereof.

11. The fabric care composition or laundry care composition of claim 2 , wherein the fabric care composition or laundry care composition is in the form of a liquid, a gel, a powder, a hydrocolloid, an aqueous solution, granules, tablets, capsules, single compartment sachets, multi-compartment sachets, or any combination thereof.

12. The fabric care composition or laundry care composition of claim 2 , wherein the α-glucan oligomer/polymer composition is cellulase-resistant, protease-resistant, amylase-resistant, or a combination thereof.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 28, 2020
From: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
To: NUTRITION & BIOSCIENCES USA 4, INC.
Reel/Frame 055028/0496 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ENTITY TYPE PREVIOUSLY RECORDED AT REEL: 049879 FRAME: 0043. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Sep 6, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
Reel/Frame 050300/0408 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 26, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
Reel/Frame 049879/0043 →
Continuity (2)
Provisional Application 62255155 · Nov 13, 2015
Related Publication 20180291311A1 · Oct 11, 2018